v3.26.1
Share-Based Compensation - Summary of Restricted Stock Unit's Activity (Detail) - $ / shares
12 Months Ended
Jan. 31, 2026
Jan. 31, 2025
Jan. 31, 2024
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Granted, Weighted average fair value $ 56.77 $ 41.92 $ 26.96
Restricted Stock Units (RSUs)      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Non-vested awards outstanding at beginning of year, Shares 2,450,820    
Granted, Shares 542,860    
Vested, Shares (906,598)    
Forfeited, Shares (116,471)    
Non-vested awards outstanding at end of year, Shares 1,970,611 2,450,820  
Non-vested awards outstanding at beginning of year, Weighted average fair value $ 31.88    
Granted, Weighted average fair value 57.97 $ 41.9 27.42
Vested, Weighted average fair value 30.07 29.72 $ 31.11
Forfeited, Weighted average fair value 38.08    
Non-vested awards outstanding at end of year, Weighted average fair value $ 39.54 $ 31.88